| Graphis underwoodae Bartsch, 1947 | |
| Scanning Electron Micrographs (SEM) | |
| Recent Specimen | Fossil Specimen | 
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| In shell/bryozoan hash from one fathom off the town of Cedar Key, Levy County, Florida, 5/2019 (1.22 mm.). | Dig in Orlando, Orange County, Florida exposing the Nashua Formation (Plio-early Pleistocene). | 
| SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL | |